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Boundary-free full-lamination frame adhesive, boundary-free full-lamination surface adhesive and display panel

A full-fitting and borderline technology, applied in the direction of non-polymer organic compound adhesives, adhesives, adhesive types, etc., can solve problems such as negative visual effects, unavoidable bonding borderlines, and obvious interface traces

Active Publication Date: 2020-10-27
DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of frame glue also brings new interface problems: because of the difference in composition and refractive index between the frame glue and the surface glue, there is a clear boundary between the two after lamination, which affects the display effect of the component; and long-term use After that, the traces of the interface will become more and more obvious, resulting in a very large negative visual effect
However, the combination of this frame glue with silicone LOCA cannot avoid the bonding boundary, and the frame glue is heat-cured, which greatly reduces production efficiency when it is matched with UV-cured surface glue

Method used

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  • Boundary-free full-lamination frame adhesive, boundary-free full-lamination surface adhesive and display panel
  • Boundary-free full-lamination frame adhesive, boundary-free full-lamination surface adhesive and display panel
  • Boundary-free full-lamination frame adhesive, boundary-free full-lamination surface adhesive and display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] This embodiment provides a borderless full-fit frame glue and a borderless full-fit surface glue

[0084] The borderless full-fit frame glue includes the following components in weight percentage:

[0085] Polybutadiene rubber modified (meth)acrylate oligomer 45%, polybutadiene plasticizer (Nippon Soda B-2000) 30%, isooctyl acrylate 20%, multifunctional chain transfer Agent 2%, benzil dimethyl ketal 0.1% and fumed silica (average particle size 10nm) 2%;

[0086] The boundless full-fit surface adhesive includes the following components by weight percentage:

[0087] Polybutadiene rubber modified (meth)acrylate oligomer 47%, polybutadiene plasticizer (Nippon Soda B-1000) 30%, isooctyl acrylate 20%, multifunctional chain transfer 2% and benzil dimethyl ketal 0.1%;

[0088] Among them, the polyfunctional chain transfer agent is composed of 1,8-octanedithiol and Composition by mass ratio 3:1.

[0089] According to the measurement standard of GBT22235-2008 liquid viscos...

Embodiment 2

[0091] This embodiment provides a borderless full-fit frame glue and a borderless full-fit surface glue

[0092] The borderless full-fit frame glue includes the following components in weight percentage:

[0093] Polyisoprene rubber modified (meth)acrylate oligomer 53.5%, polyisoprene plasticizer (LIR-30 of Kuraray Japan) 35%, lauryl methacrylate 5%, Multifunctional chain transfer agent 5%, 1-hydroxycyclohexyl phenyl ketone 1% and fumed silica (average particle size 10nm) 0.5%;

[0094] The boundless full-fit surface adhesive includes the following components by weight percentage:

[0095] Polyisoprene rubber modified (meth)acrylate oligomer 54%, polyisoprene plasticizer (LIR-15 of Kuraray Japan) 35%, lauryl methacrylate 5%, Multifunctional chain transfer agent 5% and 1-hydroxycyclohexyl phenyl ketone 1%;

[0096] Among them, the polyfunctional chain transfer agent is composed of 1,10-decanedithiol and Composition by mass ratio 2.5:1.

[0097] According to the measuremen...

Embodiment 3

[0099] This embodiment provides a borderless full-fit frame glue and a borderless full-fit surface glue

[0100] The borderless full-fit frame glue includes the following components in weight percentage:

[0101] Aliphatic polyurethane-modified (meth)acrylate oligomer 30%, polyisoprene-based plasticizer (Ricon 130 from Creville, France) 46.5%, isobornyl acrylate 15%, multifunctional chain transfer agent 0.1%, benzophenone 8% and fumed silica (average particle size 10nm) 5%;

[0102] The boundless full-fit surface adhesive includes the following components by weight percentage:

[0103] Aliphatic polyurethane-modified (meth)acrylate oligomer 35%, polyisoprene-based plasticizer (Ricon130 from Creville, France) 46.5%, isobornyl acrylate 15%, multifunctional chain transfer agent 0.1% and benzophenone 8%;

[0104] Among them, the polyfunctional chain transfer agent is composed of 3,6-dioxa-1,8-octanedithiol and Composition by mass ratio 2:1.

[0105] According to the measurem...

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Abstract

The invention provides a boundless full-lamination frame adhesive, a boundless full-lamination surface adhesive and a display panel. The boundless full-lamination frame adhesive is prepared from 30-55% of a modified (methyl) acrylate oligomer, 30-60% of a plasticizer, 5-20% of a (methyl) acrylate monomer, 0.1-5% of a multifunctional chain transfer agent, 0.1-8% of a photoinitiator and 0.5-5% of aviscosity regulator. The boundless full-lamination surface adhesive comprises 30-55% of a modified (methyl) acrylate oligomer, 30-60% of a plasticizer, 5-20% of a (methyl) acrylate monomer, 0.1-5% ofa multifunctional chain transfer agent and 0.1-8% of a photoinitiator, wherein the multifunctional chain transfer agent comprises a difunctional ester-free thiol and a thiol having a functionality of3 or more. When the boundless full-lamination frame adhesive and the boundless full-lamination surface adhesive provided by the invention are used for bonding a display panel, an interface between theframe adhesive and the surface adhesive can be eliminated, so that a traceless lamination effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of liquid optical glue, and in particular relates to a borderless full-fit frame glue, a borderless full-fit surface glue and a display panel. Background technique [0002] Full lamination refers to the use of liquid optical glue to seamlessly bond the display module with the touch panel or cover to reduce light loss and glare, increase contrast, and improve display effects. It is also dustproof, waterproof, and stress buffering. technology with many effects. [0003] Liquid optical glue for full lamination includes frame glue and surface glue. The surface glue is an optical glue for bonding the display module and the touch panel or cover plate, which is coated on the display surface of the display module according to a certain pattern. In the process of producing liquid crystal display screens in the existing industry, metal frames are usually used to seal the four sides of the liquid crystal module becau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06C09J175/14C09J11/08C09J167/06G02F1/1333
CPCC09J4/06C09J11/04C09J11/06C09J175/14C09J11/08C09J167/06G02F1/13338C08L47/00C08K3/36C08K5/12C08K3/346C08K5/11
Inventor 张亚平张小中成浩冠庞晓东刘兆辉
Owner DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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